Writing tests is a normal experience for me (just like writing code) as long as the tests make sense. As soon as some manager (or senior engineer) start to ask

Writing tests is a normal experience for me (just like writing code) as long as the tests make sense. As soon as some manager (or senior engineer) start to ask for X% code coverage, then it all goes to hell and writing tests become a robotic task that adds nothing but a burden to maintain in the future.